Screenshot to Mockup

Place screenshots into device mockup frames like phones, tablets, and laptops.

Tested tool guide Tested browser tools Checked August 16, 2026

What Screenshot to Mockup does and how it behaves

You give it a screenshot of your app, site, or product, pick a device frame (phone, tablet, or laptop), and the tool composites the screenshot into the screen area of that frame so you can download one finished mockup image. Use it for store listings, portfolio pages, documentation, or social posts. Everything happens in the browser: your image is never uploaded, so unreleased product screenshots stay on your machine. The surprise for most users is that a frame's screen is a fixed shape while screenshots come in many proportions, so fitting one into the other is the step that decides whether the result looks natural or stretched.

How the result is produced

Fitting the screenshot to the screen

Each frame's screen area has a fixed aspect ratio. Your screenshot is scaled to that area, and when the proportions differ, the mismatch has to be resolved one way or another: the image is cropped, bands are left around it, or it is stretched. The export shows which of these happened. Matching your screenshot's aspect ratio to the target device up front sidesteps the trade-off entirely.

Rendering and export

The composite is put together entirely in the browser and comes out as a single flat image you download. Because nothing is sent to a server, there is no account, no upload step, and no queue to wait in. The trade-off is that the exported file is final: changing the frame, the background, or the screenshot means composing it again rather than editing the downloaded image.

Good uses

You built an app and need a phone mockup for its store listing or your portfolio, and the bare screenshot alone looks too plain to present.
You are writing product documentation or a pitch deck and want a dashboard capture shown in a laptop frame so the page reads as a product shot instead of a flat image.
You are announcing a release or a new feature and want a tablet or phone frame around the screenshot so the post looks designed without building a layout.

Limits and checks

The fit can misrepresent your design. When the frame's screen proportions differ from the screenshot's, part of your UI may be cropped or compressed. Compare the mockup with the original before sharing it: a distorted or cut-off layout usually means the frame you chose does not match your capture.
The frame adds its own visual weight. Thick bezels, pronounced shadows, and a busy background can dominate a clean UI, so a mockup that looked subtle in concept can end up making the screenshot feel like a stock image. Judge the export for the frame's styling, not just the fit.
The output is bounded by the input. A composite cannot be sharper than the screenshot you loaded, so a small or heavily compressed capture looks pixelated once it fills a large frame. If your only copy is low resolution, the mockup will advertise that weakness, not hide it.

Common questions

Is my screenshot uploaded to a server?

No. The tool runs entirely in the browser: the screenshot you load is framed and exported locally and never leaves your machine. There is no account and no gallery where other people's captures appear. This is the point of the tool if your screenshot shows unreleased product work.

Which frame should I choose for my screenshot?

Choose the frame whose screen shape matches the proportions of the screenshot, not necessarily the device you captured it on. A portrait phone capture belongs in a portrait phone frame, and a wide desktop capture belongs in a laptop frame. When they mismatch, the fitting step must crop, letterbox, or stretch part of your UI, so the choice affects quality, not just looks.

References and verification

The behavioral notes were checked against the browser implementation. Standards and primary references below define the relevant format, formula, or platform behavior.